frmCPUWin.pas

{
Grundy NewBrain Emulator Pro Made by Despsoft

Copyright (c) 2004, Despoinidis Chris
All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON A
NY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
}
unit frmCPUWin;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ExtCtrls,Math;

type


  TfCPUWin = class(TForm)
    FlagBox: TGroupBox;
    FL1: TLabel;
    FL2: TLabel;
    FL3: TLabel;
    FL4: TLabel;
    FL5: TLabel;
    FL6: TLabel;
    FL7: TLabel;
    FL8: TLabel;
    GroupBox1: TGroupBox;
    LAF: TLabel;
    LBC: TLabel;
    LDE: TLabel;
    LHL: TLabel;
    LIX: TLabel;
    LIY: TLabel;
    LIR: TLabel;
    LSP: TLabel;
    LPC: TLabel;
    EDAF: TEdit;
    EDBC: TEdit;
    EDDE: TEdit;
    EDHL: TEdit;
    EDIX: TEdit;
    EDIY: TEdit;
    EDIR: TEdit;
    EDSP: TEdit;
    EDPC: TEdit;
    EDAF2: TEdit;
    EDBC2: TEdit;
    EDDE2: TEdit;
    EDHL2: TEdit;
    Timer1: TTimer;
    Label1: TLabel;
    EdIF1: TEdit;
    EdIF2: TEdit;
    Label2: TLabel;
    EdIRQV: TEdit;
    EdIRQL: TEdit;
    Label3: TLabel;
    EdHLT: TEdit;
    procedure FormCreate(Sender: TObject);
    procedure FLClick(Sender: TObject);
    procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
    procedure Timer1Timer(Sender: TObject);
  private
    AF: WORD;
    BC: WORD;
    DE: WORD;
    HL: WORD;
    AF2: WORD;
    BC2: WORD;
    DE2: WORD;
    HL2: WORD;
    IX: WORD;
    IY: WORD;
    IR: WORD;
    SP: WORD;
    PC: WORD;
    IF1: WORD;
    IF2: WORD;
    IRQV: WORD;
    IRQL: WORD;
    HLT: WORD;
    procedure ShowFlag;
    procedure ShowRegisters;

    function GetFLAG: Byte;
    { Private declarations }
  public
    procedure GetRegisters;
    property FLAG: Byte read GetFLAG;
    { Public declarations }
  end;

var
  fCPUWin: TfCPUWin;

implementation
USES z80baseclass,unbmemory,jclLogic,new;

{$R *.dfm}

Function NBLow(W:Word):Byte;
Begin
 Result:=W Mod 256;
end;

Function NBHigh(W:Word):Byte;
Begin
 Result:= W div 256;
end;

procedure TfCPUWin.FormCreate(Sender: TObject);
begin
  Application.HintHidePause:=6500;
  Left:=10;
  Top:=10;
end;

procedure TfCPUWin.FLClick(Sender: TObject);
CONST MYUPPER=['C','N','P','X','H','Z','S'];
Var lx:String;
    b:Byte;
begin
  lx:=(Sender as TLabel).Caption;
  if lx[1] in MYUPPER then
    SetBit(GetFlag,Byte((Sender as TLabel).Tag))
  Else
    ClearBit(GetFlag,Byte((Sender as TLabel).Tag));

end;

procedure TfCPUWin.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
begin
 canclose:=tag>0;
 Timer1.Enabled:=not canclose;
end;

function TfCPUWin.GetFLAG: Byte;
begin
  AF := z80_get_reg(Z80_REG_AF);
  Result:=NBLow(AF);
end;

procedure TfCPUWin.GetRegisters;
begin
  AF := z80_get_reg(Z80_REG_AF);
  BC := z80_get_reg(Z80_REG_BC);
  DE := z80_get_reg(Z80_REG_DE);
  HL := z80_get_reg(Z80_REG_HL);
  AF2 := z80_get_reg(Z80_REG_AF2);
  BC2 := z80_get_reg(Z80_REG_BC2);
  DE2 := z80_get_reg(Z80_REG_DE2);
  HL2 := z80_get_reg(Z80_REG_HL2);
  IX := z80_get_reg(Z80_REG_IX);
  IY := z80_get_reg(Z80_REG_IY);
  IR := z80_get_reg(Z80_REG_IR);
  SP := z80_get_reg(Z80_REG_SP);
  PC := z80_get_reg(Z80_REG_PC);
  IF1 := z80_get_reg(Z80_REG_IFF1);
  IF2 := z80_get_reg(Z80_REG_IFF2);
  IRQV := z80_get_reg(Z80_REG_IRQVector);
  IRQL := z80_get_reg(Z80_REG_IRQLine);
  HLT := z80_get_reg(Z80_REG_HALTED);
end;

procedure TfCPUWin.ShowFlag;
Var f:Byte;
Begin
  f:=GetFLAG;
  if TestBit(f,0) then
   FL1.Caption:='C'
  Else
   FL1.Caption:='c';

  if TestBit(f,1) then
   FL2.Caption:='N'
  Else
   FL2.Caption:='n';

  if TestBit(f,2) then
   FL3.Caption:='P'
  Else
   FL3.Caption:='p';

  if TestBit(f,3) then
   FL4.Caption:='X'
  Else
   FL4.Caption:='x';

  if TestBit(f,4) then
   FL5.Caption:='H'
  Else
   FL5.Caption:='h';

  if TestBit(f,5) then
   FL6.Caption:='X'
  Else
   FL6.Caption:='x';

  if TestBit(f,6) then
   FL7.Caption:='Z'
  Else
   FL7.Caption:='z';

  if TestBit(f,7) then
   FL8.Caption:='S'
  Else
   FL8.Caption:='s';
end;

procedure TfCPUWin.ShowRegisters;
    Procedure ShowRegister(Txt:TEdit;v:Word);
    Begin
      Txt.Text:=inttohex(v,4);
      Txt.Hint:=Format('%d (Hi:%d,Lo:%d)',[v,NBHigh(v),NBLow(v)]);
      Txt.ShowHint:=True;
    End;
Begin
  ShowRegister(EDAF,AF);
  ShowRegister(EDBC,BC);
  ShowRegister(EDDE,DE);
  ShowRegister(EDHL,HL);
  ShowRegister(EDAF2,AF2);
  ShowRegister(EDBC2,BC2);
  ShowRegister(EDDE2,DE2);
  ShowRegister(EDHL2,HL2);
  ShowRegister(EDIX,IX);
  ShowRegister(EDIY,IY);
  ShowRegister(EDIR,IR);
  ShowRegister(EDSP,SP);
  ShowRegister(EDPC,PC);
  ShowRegister(EDIF1,IF1);
  ShowRegister(EDIF2,IF2);
  ShowRegister(EDIRQV,IRQV);
  ShowRegister(EDIRQL,IRQL);
  ShowRegister(EDHLT,HLT);
end;

procedure TfCPUWin.Timer1Timer(Sender: TObject);
begin
 GetRegisters;
 ShowRegisters;
 ShowFlag;
end;

end.